Photocatalytic degradation of several VOCs (n-hexane, n-butyl acetate and toluene) on TiO2 layer in a closed-loop reactor

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F13%3A43895691" target="_blank" >RIV/60461373:22310/13:43895691 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.cattod.2012.10.017" target="_blank" >http://dx.doi.org/10.1016/j.cattod.2012.10.017</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cattod.2012.10.017" target="_blank" >10.1016/j.cattod.2012.10.017</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Photocatalytic degradation of several VOCs (n-hexane, n-butyl acetate and toluene) on TiO2 layer in a closed-loop reactor

Popis výsledku v původním jazyce

This paper deals with photocatalytic degradation of three VOCs differing in chemical structure (n-hexane, n-butyl acetate and toluene) in a closed-loop reactor. Degradation tests were performed on particulate layers prepared from TiO2 VLP7000 (Kronos). Concentration dependencies of VOCs were simulated and initial degradation rates calculated. Dependence of the latter on initial concentrations confirms single-site Langmuir?Hinshelwood kinetics with value of hexane adsorption constant 0.023 m3 mmol?1. Itwas shown that butyl acetate is oxidized preferably to hexane when they react in a mixture, while their individual degradation seems to be kinetically similar. Toluene deactivates the photocatalyst and its degradation is thus very slow but the catalyst can be renewed by thermal treatment. The found selectivity or inhibitive ability of investigated VOCs in mixture is important for the proper choice of a suitable purification method of industrial exhaust fumes.

Název v anglickém jazyce

Photocatalytic degradation of several VOCs (n-hexane, n-butyl acetate and toluene) on TiO2 layer in a closed-loop reactor

Popis výsledku anglicky

This paper deals with photocatalytic degradation of three VOCs differing in chemical structure (n-hexane, n-butyl acetate and toluene) in a closed-loop reactor. Degradation tests were performed on particulate layers prepared from TiO2 VLP7000 (Kronos). Concentration dependencies of VOCs were simulated and initial degradation rates calculated. Dependence of the latter on initial concentrations confirms single-site Langmuir?Hinshelwood kinetics with value of hexane adsorption constant 0.023 m3 mmol?1. Itwas shown that butyl acetate is oxidized preferably to hexane when they react in a mixture, while their individual degradation seems to be kinetically similar. Toluene deactivates the photocatalyst and its degradation is thus very slow but the catalyst can be renewed by thermal treatment. The found selectivity or inhibitive ability of investigated VOCs in mixture is important for the proper choice of a suitable purification method of industrial exhaust fumes.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CA - Anorganická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/FR-TI3%2F242" target="_blank" >FR-TI3/242: Vývoj a technologické uplatnění kombinovaných dekontaminačních jednotek pro odstraňování emisí VOC včetně pachových látek</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Catalysis Today

ISSN

0920-5861

e-ISSN

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Svazek periodika

209

Číslo periodika v rámci svazku

JUN 15 2013

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

153-158

Kód UT WoS článku

000319498800025

EID výsledku v databázi Scopus

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